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Table 1 Patients and tumors characteristics included in this study

From: Gene expression profiling for the diagnosis of multiple primary malignant tumors

  First cancera Second cancer Third cancer
Gender (%)
 Male   21 (60)  
 Female   14 (40)  
Age at diagnosis
 Mean 62.5 63 68
 Range 33–77 33–77 53–70
Type (%)
 Synchronous   30 (86)  
 Metachronous   5 (14)  
Stage (%)
 I 9 (26) 18 (51) 1 (25)
 II 17 (48) 8 (23) 2 (50)
 III 6 (17) 6 (17) 1 (25)
 IV 3 (9) 3 (9) 0 (0)
Invasion site (%)
 Digestive system 19 (54) 13 (37) 3 (75)
 Reproductive 5 (14) 6 (17) 0 (0)
 Urinary system 4 (11) 5 (14) 1 (25)
 Breast 3 (9) 2 (6) 0 (0)
 Lung 3 (9) 6 (17) 0 (0)
 Head & neck 1 (3) 3 (9) 0 (0)
Treatment (%)
 Surgery   32 (91)  
 Chemotherapy   22 (63)  
Histology (%)
 Well-differentiated   40 (55)  
 Poorly differentiated   25 (34)  
 Squamous cell carcinoma   8 (11)  
  1. aOne triple metachronous MPMT patient lacked the first primary cancer specimen